Question

1) Determine as seguintes somas algébricas:

a) +25–12+4=

b)-28+15-7+2+25=


c) -15+6-8=

d)-14-2+13+7-10=


e)+12-4+8-15=

f)-8+22-4+3-12=


g)4-7+13+6-18=

h) 19+16-3-45+1=

obs:Arme a conta

;-;ajudem aí povin​

Answer 1

Resposta:

Explicação passo-a-passo:

a) +25–12+4=

25+4-12=

29-12=17

b)-28+15-7+2+25=

-28-7+15+2+25=

-35+42=7

c) -15+6-8=

-15-8+6=

-23+6=-17

d)-14-2+13+7-10=

-14-2-10+13+7=

-26+20=-6

e)+12-4+8-15=

12+8-4-15=

20-19=1

f)-8+22-4+3-12=

-8-4-12+22+3=

-24+25=1

g)4-7+13+6-18=

4+13+6-7-18=

23-25=-2

h) 19+16-3-45+1=

19+16+1-3-45=

36-48=-12